Abstract

Chromium occurs in the environment primarily in two valence states, trivalent Cr³⁺ and hexavalent Cr⁶⁺, which have different physicochemical and biochemical properties. However, the higher concentration of Cr^3+/6+ can cause various adverse effects on human health. Therefore, detecting Cr^3+/6+ ions is important in various samples. Colorimetric and fluorescent chemosensors are the most powerful tools for the detection of Cr^3+/6+ ions. These chemosensors have excellent bioimaging capability and significant sensitivity and selectivity. In this article, different colorimetric and fluorescent chemosensors based on organic compounds, including Schiff base, antipyrine, diarylethene, pyrene, crown ether, dansyl, pyridine, thiazole, coumarin, boradiazaindacene, rhodamine, imidazole, hydrazone, and other functional groups for detection of Cr^3+/6+ ions have been reviewed, classified them according to different fluorophore and recognition mode. I hope this article will help the readers for the future design of highly effective, sensitive, and selective chemosensors for the detection and determination of Cr^3+/6+ ions.

摘要

铬主要以两种价态存在于环境中，三价Cr ³⁺和六价Cr ⁶⁺，它们具有不同的物理化学和生化性质。然而，较高浓度的Cr ^3+/6+会对人体健康造成各种不利影响。因此，在各种样品中检测Cr ^{3+/6+离子非常重要。比色和荧光化学传感器是检测 Cr 3+/6+}最强大的工具离子。这些化学传感器具有出色的生物成像能力和显着的灵敏度和选择性。本文介绍了基于有机化合物的不同比色和荧光化学传感器，包括席夫碱、安替比林、二芳基乙烯、芘、冠醚、丹磺酰、吡啶、噻唑、香豆素、硼氮杂茚、罗丹明、咪唑、腙等官能团对Cr ^3+/6+离子进行了综述，根据不同的荧光团和识别方式对其进行了分类。^{我希望这篇文章对读者未来设计用于检测和测定 Cr 3+/6+}离子的高效、灵敏和选择性化学传感器有所帮助。